Function getCollapsedSourcemap

src/utils/collapseSourcemaps.ts:177–200

(
	id: string,
	originalCode: string,
	originalSourcemap: ExistingDecodedSourceMap | null,
	sourcemapChain: readonly DecodedSourceMapOrMissing[],
	linkMap: (source: Source | Link, map: DecodedSourceMapOrMissing) => Link
)

}

function getCollapsedSourcemap(
	id: string,
	originalCode: string,
	originalSourcemap: ExistingDecodedSourceMap | null,
	sourcemapChain: readonly DecodedSourceMapOrMissing[],
	linkMap: (source: Source | Link, map: DecodedSourceMapOrMissing) => Link
): Source | Link {
	let source: Source | Link;

	if (originalSourcemap) {
		const sources = originalSourcemap.sources;
		const sourcesContent = originalSourcemap.sourcesContent || [];
		const directory = dirname(id) || '.';
		const sourceRoot = originalSourcemap.sourceRoot || '.';

		const baseSources = sources.map(
			(source, index) => new Source(resolve(directory, sourceRoot, source), sourcesContent[index])
		);
		source = new Link(originalSourcemap, baseSources);
	} else {
		source = new Source(id, originalCode);
	}
	return sourcemapChain.reduce(linkMap, source);
}

export function collapseSourcemaps(
	file: string,